Cash Back or Low Interest Calculator

Choosing between a cash back credit card and a low interest card depends on your spending habits and how quickly you pay off balances.

When Cash Back Cards Win

• You pay off balances in full each month
• You pay off balances within 1-2 months
• The cash back rate is high (2%+ on purchases)
• You have excellent spending discipline

When Low Interest Cards Win

• You carry balances for several months
• You're making a large purchase to pay off over time
• The interest rate difference is significant (5%+ lower)
• You prioritize lower monthly payments

Factors to Consider

• Payoff Timeline: Shorter payoff favors cash back
• Interest Rate Gap: Larger gap favors low interest
• Cash Back Rate: Higher rates favor cash back cards
• Annual Fees: Factor into total cost calculation

Break-Even Analysis

• Calculate the point where interest costs exceed cash back rewards
• Generally, if you pay off in 1-2 months, cash back wins
• If you take 6+ months, low interest usually wins
• The exact break-even depends on specific rates

Best Practices

• Always aim to pay off balances as quickly as possible
• Use cash back cards only if you can avoid interest
• Consider 0% APR promotional offers for large purchases
• Read terms carefully - rates may increase after promotions
• Don't let rewards encourage overspending